Echinoidea - Euechinoidea - Hemicidaridae
Full reference: J.L.R. Agassiz. 1838. Prodromus of a monograph of the Radiata and Echinodermata. Annals and Magazine of Natural History 1:30-449
Parent taxon: Hemicidaridae according to H. B. Fell and D. L. Pawson 1966
See also Clark and Twitchell 1915 and Sepkoski 2002
Sister taxa: Asterocidaris, Cidaropsis, Eurypneustes, Gymnocidaris, Hemitiaris, Hessotiara, Leptarbacia, Plesiocidaris, Pseudocidaris, Sphaerotiaris
Subtaxa: Hemicidaris abyssinica Hemicidaris alpina Hemicidaris confluens Hemicidaris granulosa Hemicidaris icaunensis Hemicidaris intermedia Hemicidaris intumescens Hemicidaris koechlini
Ecology: epifaunal grazer-deposit feeder
Distribution:
• Cretaceous of France (3 collections), Switzerland (11)
• Jurassic of Eritrea (1), Ethiopia (1), France (6), Germany (2), Morocco (2), Poland (13), Saudi Arabia (2), Somalia (2), the United Kingdom (3), United States (1: California), Yemen (1)
Total: 48 collections including 53 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.